It is three years ago that I began to learn English是强调句型还是时间

I began to learn English three years ago.是什么时态 We began to learn English three years ago. we began to learn english three years ago 同义句 I began to learn English at school three years ago.同义句.I （ ） 1.We began to learn English three years ago.2.I have been to I began to learn English （three years ago） 对括号内的内容提问. I began (to learn English) three years ago.如何对（）部分提问? It ___about three years since Dean began to learn English I began to learn English language three years before.改错? It's over three years since I began to learn English.此处的over We began to learn English three years ago.(改同义句) We began to learn English three years ago.改为同义句